IVE的DMA数据拷贝问题_问答

格式为YUV420SP：
HI_S32  HISI_COMM_IVE_Copy(HI_U64 srcPhyAddr, HI_U64 dstPhyAddr, HI_U32 width, HI_U32 height, HI_U32 stride, HI_BOOL bInstant)
{
HI_S32 s32Ret;
IVE_HANDLE hIveHandle;
IVE_SRC_DATA_S stSrcData;
IVE_DST_DATA_S stDstData;
IVE_DMA_CTRL_S stCtrl = {IVE_DMA_MODE_DIRECT_COPY,0};
HI_BOOL bFinish = HI_FALSE;
HI_BOOL bBlock = HI_TRUE;

//fill src
stSrcData.u64PhyAddr = srcPhyAddr;
stSrcData.u32Width = width;
stSrcData.u32Height  = height;
stSrcData.u32Stride  = stride;

//fill dst
stDstData.u64PhyAddr = dstPhyAddr;
stDstData.u32Width = stSrcData.u32Width;
stDstData.u32Height  = stSrcData.u32Height;
stDstData.u32Stride  = stSrcData.u32Stride;

s32Ret = HI_MPI_IVE_DMA(&hIveHandle, &stSrcData, &stDstData, &stCtrl, bInstant);
if (HI_SUCCESS != s32Ret)
{
      printf("Error(%#x),HI_MPI_IVE_DMA s[%#x] d[%#x] failed!\n", s32Ret, srcPhyAddr, dstPhyAddr);
      return s32Ret;
}

if (HI_TRUE == bInstant)
{
      s32Ret = HI_MPI_IVE_Query(hIveHandle, &bFinish, bBlock);
      while (HI_ERR_IVE_QUERY_TIMEOUT == s32Ret)
      {
         usleep(100);
         s32Ret = HI_MPI_IVE_Query(hIveHandle, &bFinish, bBlock);
      }

      if (HI_SUCCESS != s32Ret)
      {
         printf("Error(%#x),HI_MPI_IVE_Query failed!\n", s32Ret);
         return s32Ret;
      }
}

return HI_SUCCESS;
}

调用一次HISI_COMM_IVE_Copy接口只拷贝了Y平面，UV平面不知道要怎么拷贝，width,height,stride是怎么传的？

//yuv420 的y数据和uv数据需要搬移两次
//copy Y data
bInstant = HI_TRUE;
stSrc.pu8VirAddr = (HI_U8*)p_src_stFrameInfo->stVFrame.pVirAddr[0];
stSrc.u32PhyAddr = p_src_stFrameInfo->stVFrame.u32PhyAddr[0] + p_src_rect->s32X + p_src_rect->s32Y * VO_W;
stSrc.u16Stride = (HI_U16)p_src_stFrameInfo->stVFrame.u32Stride[0];
stSrc.u16Width = (HI_U16)p_src_rect->u32Width;
stSrc.u16Height = (HI_U16)p_src_rect->u32Height;

stDst.pu8VirAddr = stVFrame1.stVFrame.pVirAddr[0];  //DMA只需要关心物理地址，用户态地址可以不用
stDst.u32PhyAddr = stVFrame1.stVFrame.u32PhyAddr[0] + p_dst_rect->s32X + p_dst_rect->s32Y * VO_W;
stDst.u16Stride = stVFrame1.stVFrame.u32Stride[0];
stDst.u16Width = (HI_U16)p_dst_rect->u32Width;
stDst.u16Height = (HI_U16)p_dst_rect->u32Height;

s32Ret = HI_MPI_SYS_MmzFlushCache(0, NULL, 0);
SAMPLE_CHECK_EXPR_RET(HI_SUCCESS != s32Ret,s32Ret, "HI_MPI_SYS_MmzFlushCache fail,Error(%#x)\n",s32Ret);

s32Ret = HI_MPI_IVE_DMA(&IveHandle,&stSrc,&stDst,&stDmaCtrl,bInstant);
SAMPLE_CHECK_EXPR_RET(HI_SUCCESS != s32Ret,s32Ret, "HI_MPI_IVE_DMA fail,Error(%#x)\n",s32Ret);

//copy UV data
stSrc.pu8VirAddr = (HI_U8*)p_src_stFrameInfo->stVFrame.pVirAddr[1];
stSrc.u32PhyAddr = p_src_stFrameInfo->stVFrame.u32PhyAddr[1] + p_src_rect->s32X + p_src_rect->s32Y/2 * VO_W;
stSrc.u16Stride = (HI_U16)p_src_stFrameInfo->stVFrame.u32Stride[1];
stSrc.u16Width = (HI_U16)p_src_rect->u32Width;
stSrc.u16Height = (HI_U16)p_src_rect->u32Height/2;

stDst.pu8VirAddr = stVFrame1.stVFrame.pVirAddr[1];
stDst.u32PhyAddr = stVFrame1.stVFrame.u32PhyAddr[1] + p_dst_rect->s32X + p_dst_rect->s32Y/2 * VO_W;
stDst.u16Stride = stVFrame1.stVFrame.u32Stride[1];
stDst.u16Width = (HI_U16)p_dst_rect->u32Width;
stDst.u16Height = (HI_U16)p_dst_rect->u32Height/2;

s32Ret = HI_MPI_SYS_MmzFlushCache(0, NULL, 0);
SAMPLE_CHECK_EXPR_RET(HI_SUCCESS != s32Ret,s32Ret, "HI_MPI_SYS_MmzFlushCache fail,Error(%#x)\n",s32Ret);

s32Ret = HI_MPI_IVE_DMA(&IveHandle,&stSrc,&stDst,&stDmaCtrl,bInstant);
SAMPLE_CHECK_EXPR_RET(HI_SUCCESS != s32Ret,s32Ret, "HI_MPI_IVE_DMA fail,Error(%#x)\n",s32Ret);

IVE的DMA数据拷贝问题

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